Gas and Oil Home Heating Furnaces - Carrier Heating & Cooling system is not working

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johny69
10-21-03, 01:01 PM
I owned my house one and half year, I have Carrier Central Heating & Cooling system(model 48GS &48GX). The heating system was working two days ago, but the heating Suddenly did not work, but the cooling is ok.
Could somebody tell me the reason to casue this problem?

thanks!

Johny

KField
10-21-03, 04:34 PM
Make sure the thermostat is set to heat mode. Look for whatever source the furnace uses for ignition. It would either be hot surface and glows bright red before ignition or spark which clicks before ignition. If your ignitor works we'll go on from there.